.ScrollContainer {
  margin-left: 20px;
  margin-right: 20px;
  background-color: yellowgreen;
  // height: 200px;
  // overflow: scroll;
  .switchBar {
    display: flex;
    align-items: center;
    justify-content: space-around;
    border: 1px solid black;
    .switchItem {
      font-size: 20px;
      line-height: 42px;
      color: blue;
    }
  }
  .scrollTop {
    width: 100vw;
    background-color: red;
    position: fixed;
    top: 0;
    left: 0;
  }
  .ulContainer {
    .liItem {

    }
  }
}